Vending machine controller and system
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United States of America Patent
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Sep 28, 1999
Grant Date -
N/A
app pub date -
Dec 3, 1996
filing date -
Dec 3, 1996
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A vending machine controller having a single serial port on the same chip as the programmable processor. The controller includes a port arbitrator that selectively connects one of several serially communicating devices to this single serial port. The vending machine controller also has multitasking capabilities so that remote price changing, and/or remote reprogramming can be conducted at the same time as a vend operation and/or a multimedia presentation.
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